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Value must be a vector

fahmed-2
13-Aquamarine

Value must be a vector

Hello,

 

I am trying to simulate result in arrays but it is giving me an error that value must be a vector. I have tried to search my worksheet but am unable to identify the problem. Please help me with this. My version is prime 4.0

 

Thanks,

 

Faisal

ACCEPTED SOLUTION

Accepted Solutions
Werner_E
25-Diamond I
(To:fahmed-2)

I have some tracing back the various function calls made (OK, honestly I'm to lazy to do so), but using Primes very basic trace feature I was able to trace back to function Lambda.

Obviously with the data you provide, function "a" does not return a vector, but a simply scalar and so "sort" throws that error. Probably because x.guess is not a vector.

B.png

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6 REPLIES 6
Werner_E
25-Diamond I
(To:fahmed-2)

I have some tracing back the various function calls made (OK, honestly I'm to lazy to do so), but using Primes very basic trace feature I was able to trace back to function Lambda.

Obviously with the data you provide, function "a" does not return a vector, but a simply scalar and so "sort" throws that error. Probably because x.guess is not a vector.

B.png

fahmed-2
13-Aquamarine
(To:Werner_E)

I think the lambda returns a value as xguess is in a vector (file attached). But I have no idea why it is saying that it must be a vector

Werner_E
25-Diamond I
(To:fahmed-2)

The problem seems to be the vectorization in your function Phi.

It also vectorizes x.guess making it a scalar.

 

Look if the modified function Phi now does what you expect. I got rid of a lot of unnecessary and confusing parenthesis and I left vectorization even though it would not be needed as far as I see as you call the routines with scalars only.

 

 

fahmed-2
13-Aquamarine
(To:Werner_E)

can you please send me a prime 4.0 version of the file

Werner_E
25-Diamond I
(To:fahmed-2)

Here you are

fahmed-2
13-Aquamarine
(To:Werner_E)

thank you

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